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Brewengineer says, "The rate of sea level rise has actually been consistent over the last 2 decades when corrected for certain variables. "

Indeed, his link says, "We find that when correcting for interannual variability, the past decade’s slowdown of the global mean sea level disappears,"

The data published by Colorado University’s Sea Level Research Group has already been extensively corrected to the tune of adding nearly a full millimeter of sea level rise to get to their published current rate of 3.2 mm/yr. Adding correction upon correction to raw data when the corrections are always made in only one direction become highly suspect with respect to their legitimacy.

Where can you see the trail of corrections made to their data? The internet WayBack Machine. Data as it was published in 2004 said sea level was going up at a rate of 2.6 mm/yr. Today that same time line of data says it went up at 3.5 mm/yr. In terms that everyone can understand, the historical data has been rewritten.

TROLLSLAYER writes, "No, other troll who appears from nowhere, I did not say in "Charelston".
That is a GLOBAL rate of increase."

The data for the global rate of sea level rise as kept by Colorado University's Sea Level Research Group shows the same phenomenon as Charleston's tide gauge. A link to the Raw data found here
http://sealevel.colorado.edu/
is easily analyzed using Excel's slope function:

1992.9595 to 2003.8187 3.5 mm/yr
2003.8459 to 2014.1893 2.9 mm/yr

The rate of sea level rise over the last 21 years according to the satellite data does not show an increase.

Charleston has a 92 year tide gauge record
http://www.psmsl.org/data/obtaining/stations/234.php
the first 46 years (1922-1946) the rate of rise in sea level was 3.7 mm/yr and the rate since 1947 is 2.8 mm/yr